CVE-2021-43618

Publication date 15 November 2021

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

GNU Multiple Precision Arithmetic Library (GMP) through 6.2.1 has an mpz/inp_raw.c integer overflow and resultant buffer overflow via crafted input, leading to a segmentation fault on 32-bit platforms.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gmp	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.04 LTS focal	Fixed 2:6.2.0+dfsg-4ubuntu0.1
	18.04 LTS bionic	Fixed 2:6.1.2+dfsg-2ubuntu0.1
	16.04 LTS xenial	Fixed 2:6.1.0+dfsg-2ubuntu0.1~esm1 Ubuntu Pro
	14.04 LTS trusty	Fixed 2:5.1.3+dfsg-1ubuntu1+esm1 Ubuntu Pro

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Notes

sbeattie

reproducer in debian bug report

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
gmp	Upstream: https://gmplib.org/repo/gmp-6.2/rev/561a9c25298e

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H